Web Demo Video Synthesis

by Sven-LI-sankyuu

Web Demo Video Synthesis is an Automation skill for Claude Code, published by Sven-LI-sankyuu in presentation-skills.

169 stars21 forkson Sven-LI-sankyuu/presentation-skillsAdded 2026/09/08+1% in starsRepository updated 2026/07/29

View source on GitHub Download repo ZIP

claude-codecodexopenclawopenclaw-skillspresentation-slidespresentation-toolsskillskills

Install in seconds

Install Web Demo Video Synthesis

Copy Web Demo Video Synthesis into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/Sven-LI-sankyuu/presentation-skills/tree/main/web-demo-video-synthesis ~/.claude/skills/web-demo-video-synthesis

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/Sven-LI-sankyuu/presentation-skills.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: web-demo-video-synthesis/SKILL.md in Sven-LI-sankyuu/presentation-skills
Installs to: ~/.claude/skills/web-demo-video-synthesis
Collection: One of 6 skills cataloged from this repository
Category: Automation — 2226 skills

What Web Demo Video Synthesis does

Web Demo Video Synthesis builds a segmented voiceover, timeline, screen recording, subtitles, and final MP4 in a reusable workspace. Use it when you need an auditable web demo video process with partial reruns and controlled subtitle placement.

Web Demo Video Synthesis is cataloged under Automation on DirSkills. Web Demo Video Synthesis comes from a repository tagged claude-code, codex, openclaw, openclaw-skills and presentation-slides.

Documentation

README

Excerpt

Web Demo Video Synthesis

核心原则

先锁定文案，再执行技术流水线。
语音必须按段生成（每段独立可重试，可定位失败）。
timeline.json 是全链路主键：录屏、音频编排、字幕都基于它。
录屏阶段输出“无字幕母带”，字幕在最终合成阶段统一烧录。
禁止静默降级：缺参数、schema 错误、时序冲突必须直接报错。

网页演示设计偏好（默认建议）

结构优先“每页一主题”：一段旁白对应一个完整页面/板块，讲完再翻页，避免“一屏塞满全部信息”。
默认视觉方向：白色/米色背景 + 轻松活泼但有科技感的点缀色（青绿/天蓝/暖橙），减少沉重暗色与“AI 味”紫色方案。
保持高信息密度与可读性平衡：标题醒目、正文简洁、层次清晰、每页有明确视觉重心。
尽量做成“多媒体网页 demo”而不是纯文字卡片：图表（折线/柱状/环形/热力）、指标卡、动效（数字跳动/进度条/光扫）、图片/插画、轻量交互（hover/选项切换）都会让录屏成片更像“真实产品演示”，显著降低“AI 味”。
对外发布前至少做一次“竖屏真机视角”复核：确认翻页节奏、字幕安全区、关键视觉元素不被裁切。

文案与读音（中文 TTS 经验）

中文配音（例如阿里云 ISI zhida）时，如果旁白里出现大量英文/缩写/口语拼接，容易出现“读不对/怪口音”，建议做如下处理（这是内容层面的修复，优先于换 TTS 引擎）：

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Web Demo Video Synthesis

What else does Sven-LI-sankyuu publish alongside Web Demo Video Synthesis?
Web Demo Video Synthesis is one of 6 skills that DirSkills catalogs from Sven-LI-sankyuu/presentation-skills, the repository it ships in. Its siblings there include PPT Complex Diagram Collab, PPT Polished Deck Collab and Ppt Polished Deck Collab. Each one is a separate skill with its own page in this directory, installs the same way Web Demo Video Synthesis does, and is maintained by Sven-LI-sankyuu in that same repository. The rest of the collection is listed on the Sven-LI-sankyuu/presentation-skills page.
How does Web Demo Video Synthesis compare to other Automation skills?
Web Demo Video Synthesis ranks #1990 by stars among the 2226 Automation skills in this catalog. The most-starred ones next to it are Autonomous Loops, Autonomous Agent Harness and Automation Audit Ops. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Web Demo Video Synthesis against them. Open each page to compare what they document and how they install.